Fireproof window frame and sash.



No, 865,3?4. 'PATENTED SEPT. 10, 1967: P. W. FRENZBL. PIRBPROOF WINDOW FRAME AND SASH;

APPLIUATIDE FILED 2 SHEETS 'QHEET 1 INVENTOR, Qua f.

F. W, PHJNZEL.

PiREPRQGF WENDUW FRAME AND SASP.

APPi-HMTIDN FILED APK, 17 NM W! TNESSES I served that these parts are so arranged that they offer substantial resistance to displacement under ordinary wear and tear. The removahility of section k, which it will be observed is on the inside of the irzuueand hence accessible at all times without disturbing the sashes, permits access to the weights, which are indicated at z in dot and dash outline in Fig. 2.

The lower sash is constructed as follows: The sashstiles 1 and lower rail 2 are constructed substantially in the same hollow form as is common in structures of this character, having the internal groove 3 to receive the panes of glass. In the present instance, however, the piece of sheet metal from which the lower rail is formed has the lower edge of its outer wall 4 rebont so as to recoive the downwardly bent edge portion 5 of a strip of sheet metal 6 which forms the bottom of rail 2 and has its opposite edge joined with the front wall 7 of said rail in a folded or lock-seam 8. The result is the formation of a downwardly projecting lip which lies along the outside face of one of the shoulders 10 of the sill as a form of weather guard. The upper rail comprises the compositesections 11 and 12 having the edge portions 13 thereof extending upwardly inside of the upper or partingrail and then turned slightly away from each other so as to produce a flared mouth 14. A slide plate 15, which forms the top wall of the upper or parting rail, is connected with the upper edges oi the members 11 and 12 by the folded joints 16, in such manner, however, that said plate may be slid lengthwise to form an opening in the top of the rail; The object of this construction is to permit the panes of glass 17 to be inserted from the top into their grooves 3 in. the sash, the same entering through the flared opening 14 produced 'by the edges 13 of the. membersll and 12.

The upper sash is constructed substantially similar to the lower sash except, of course, that the parts 11 to 16 inclusive form in this case the top-rail; the parting-rail ofthe upper sash preferably comprises the sheet metal pieces 18 and 19 together joined by folded or lock seams 20.along the lower edges of the rail, which latter should have the grooves 3 formed in the piece 18 to receive the glass 17.

The astragals, best shown in Figs. 1, 5 and U, are colistructed as follows: each comprises two composite members 21 like that shown in the figure referred to which is a piece of sheet metal bent twice lengthwise, substantially midway thereof and formed with countersinks or recesses 22, being then bent downwardly from both sides of its recessed portion divergently, the edge portions being then hunt ton'urd ouch olln-r, u .ll 2 in substantially the same plane and having; their UXifl'lllb ties turned inwardly, as al 24. When two of these llll'lllhers have been placed in the relation shown in Fig. l and secured by solder or otherwise to the stiles or other parts of the frame (Fig. 3) a space 25 exists between them for the admission of the subjaeent pane of glass. The upper pane of glass is supported by a chaufieletl piece of sheet metal 26 (Figs: 1 d: (5) having the lateral flanges 27 which, when the said strip is arranged botween the upper portions of the members 21, may be partly supported by the flanges thereof. Both of the lower and upper panes of glass being arranged in place, as illustrated in Fig. 1, for instance, bolts 28 are passed through the recessed portions of the members 2]. and made to clamp the panes of glass between them, the

channeled strip, ii dosin-d, resting on tho liolls. This construction affordsu very strong. light and substitulial form of joint between tln- :ldjoluing patties of glass, while i it permits the ready ieuioml oi broken panes .lllil tln in sertion of new ones in order to both hrneithe astragals against buckling in (use undue pressure should be applied to \ln-m and give increased strength and rigid ily to the entire sash I employ n lic-bolt ill) passed through the still-s and the estrous], as shmvu in Figs. 1 and ii, and has its head and nut countersunk in the iormer, as at .lll.

If desired, the window frame may be divided vertically into two compartments 2!] and 30, one ior each weight by a partition 3] which should not extend so far toward the bottom (see Fig. ll as to prevent access to the weight in compartment 30.

which is llaving lhus fully described my invention, wlntt 1 claim as new and desire to secure by Letters Patent oi the United States is:

1. A hollow sheet lllt'illl window [runie halving u removable section forming the interior wnll of ouch of its sides. mild section helng removable from th frame in the plane of said section when arranged in the frame. substantially as described.

2. hollow sheet metal window frame having u removablc section forming the lnterior wall of each of its sides, and having grooves opening in the some direction and receiving the opposite edges of said section. substantially as described.

3. A hollow sheet will movable section forming the interior wall of (ucll of its sides. and having grooves opening in the same direction and receiving the UpllUHlil edges of said section, and menus for seem-lug said sretlon with its edger-i in said In -1' substantially as described, I

4. A hollow sheet metal window frame hnvlng a removuhle section forming the Interior or each of its sides. and n Vl'I'ilL'lll partition substantially pnrnlh-l with snld section and extending short ol the sill snrl'zu'e of said frame, substantially as described.

T ln 2 uollow sheet melul window frame, u side thereof having a vertical groove in its jumlrpiu'tlon nnd comprislug a section disposed at nu angle to said ,lulnlrporllon and having onoedge hvnl buck and inserted in said groove, substuullully us described.

ii. in u hollow sheet invlul window frame. it slde thereof having it vi-i'llrul nyliru: n v-ucflon dlq. d all uncle to said jumb-portlon. suld section nlmlling against the edge of snid julnb-portlon and having one edge bvnl lam-k and inserted in said groove, suhstnnllully as described. i

l. in u hollow idllll un-lul window frame, a rtllll' llivrnof having it vertical groovi- In its litmlrporllon and comprising u section disposed at an uhgle in said jnrllb'pol'tiull uud halving, one edge lnlli buck (lud inserted in said groove,

comprising a section disposed or .in ungli' to snid junihport on lllld having one edge hunt bark and Inserted In one f mill grooves and ulao duuprlslng u bend arranged in 1hr other groove, substantially as rlvserlbed.

.l, wlndow Nlmll eonuu'bdlu: two sheet metal opposed NlNlL't'll iueulboi's in its Bilil'll;:tli adapted to receive between them llnedge or edges of u pone or panel: of glass, each member having lts louglrullluul eduepoi'tlons standing in suhsluntlully the some pluinand projecting toward each other, in combination wilii u eluinnoled strip luterposed between suld members and adapted to receive the edge of u munor mines or gluss uud llliilll-H. engugln the exterior wnlls u! said members. for drawing said members together and thus elnuiplug the built or panes between them. substuntlnlly as described.

it). window sash comprising two opposed spin-ed "s jumb'porlion and eomprls s het metal'exterlol'ly recessed memheys adapter] to l eceivc between them the edges 01; djuining panes of glass, in combination; with a channeled strip imurposedbetwenn said me mbgrs and recelvlug the edge at one pane, and means, extending through the recessd portions of said members. far clamping said members together, substan; tmlly as described.

11. A window sash comprising two horlzonta! opposed membeis arranged to farm a' vertical space {fetween them 10 and adapted ,to veceive In said space the edges of superposed panes of gl ass, in combination with a chaxmmed strip inlerpusml between the members with its open shit up and adapted (.0 receive the lnwcr Mgr of the lippvr v pnmr, substantially as dvscrlhcd.

In testimony. that 1 claim the foregoing, I have hcrvunlu 15 wit my mind this 12th day of April, 1907.

' .PAUL- W. FRENZEL Witnesses:

Jmm W. g'rmwnnn, \YM. h. BELL. 

